NORFOLK, Va. — The fraternity at the center of a Rolling Stone article that chronicled a culture of sexual violence at the University of Virginia has been reinstated after city police could not confirm an allegation of rape occurred at that fraternity’s house.

The Rolling Stone article described in graphic detail an alleged gang rape at the Phi Kappa Psi house.

In a statement Monday, the university said Charlottesville police told the university their investigation into the matter has not revealed any substantive basis to confirm the allegation.

The article led to a temporary suspension of fraternities and sororities’ social activities by the university.

Phi Kappa Psi became the first fraternity to be reinstated after it agreed to new rules governing how alcohol is distributed at parties, among other things.

The article says school administrators and students keep sexual assaults quiet. Sullivan, however, said the university takes sexual misconduct seriously.

In May, U.Va. was listed among 55 schools across America facing a sexual abuse investigation under the Title IX law by the Education Department for the way they handle sexual abuse allegations by their students.